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RE: extract data from graph ?

From: Windhorn, Allen E [ACIM/LS/MKT]
Subject: RE: extract data from graph ?
Date: Wed, 28 Mar 2018 13:51:59 +0000


> -----Original Message-----
> From: Help-octave [mailto:help-octave-
> I need to correct a paper containing graphs saved as bitmap images. Those
> images were generated by a scope, and I can't redo the experiment. Is there
> some way to "undo" the graph and get back the curves ?
> I can take the image, apply a differentiator, check for regions of high
> contrast, and map that region back to values. But if some automatic tool
> could do it quickly and without error, it would be better.

Take a look at Datathief, it works pretty well once you get the
hang of it, and it's free to try out at least.


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